. >> reporter: cnn has been citing a law enforcement source saying when holmes was detained on friday he had red hair and said he was the joker. >> i called police to let them know, yeah, that's where he got the gun. >> reporter: we talked to his hunting buddy in south dakota about the experience, both vividly recalled what the customer looked like. >> when he walked in there at the gander mountain, i mean, he just looked, like his eyes were super wide open kind of looked like silver dollars, do you know what i mean? he was out of it i could tell it looked like and so, you know, i don't know, it's not something a sane person would do. >> reporter: mckee said the man he thinks was holmes didn't say a word as the scope was installed on the gun he was buying. >> the gun he was looking at was an ar-15, it was an assault rifle and i definitely knew -- i had a weird feeling that that guy shouldn't be buying that type of gun, he just had a weird aura about him, i guess, not the type of weapon you go hunting with. it's for home protection and, you know, those type of things. >> reporter: mcke